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Clue: "Technology used by smartphones nowadays ... or a hint to the ends of 16-, 24-, 44- and 57-Across"
"Technology used by smartphones nowadays ... or a hint to the ends of 16-, 24-, 44- and 57-Across" is a New York Times crossword puzzle clue that we have seen 1 time.
Possible answer
Recent usage in crossword puzzles
- New York Times - July 27, 2021